Question

The length of metal pipe is 70cm, diameter of inside is 10cm and thickness of metal is 5mm. If density of metal is 8gm/cm^3 then , find the mass of metal is used.​

Answer 1

HERE IT IS ;

h = 70 cm

Inner diameter = 10cm

thickness = 5cm

new diameter = 15cm

radius = 15/2 cm = 7.5cm

volume of pipe = 22/7 * 7.5* 7.5*70 = 12375 cm³

NOW,

1 cm³ = 8gm

12375 cm³ = 12375 * 8  = 99000 gm = 99kg

HOPE IT HELPS YOU AND IF DOES THEN

PLEASE DROP A THANKS AND ALSO VOTE IT EXCELLENT

THANK YOU..........